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Condensed Consolidated Statements of Operations (Unaudited) (Parenthetical) - USD ($)
3 Months Ended
Jan. 31, 2021
Jan. 31, 2020
Research and Development Expense [Member]    
Non-cash share based compensation expenses $ 290,207 $ 397,523
General and Administrative Expense [Member]    
Non-cash share based compensation expenses $ 695,892 $ 623,811